1 definition by icallquest

Top Definition
1. synonym for cool, okay,good, good for you, good job
phil : i had sex with a female last night
Maxx: soo much gain for you



Rob: i ate a whole big mac today
Samantha: Gain on you


Caddy: i sucked some mean dick last night
pimp: GAIIIIIIIINNNN!

Raphael: i scored the winning goal last night
George: Gaintastic!!
by icallquest July 22, 2008

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